The ULN-Series low-temperature Organic Rankine Cycle modules by Zuccato Energia have been expressly designed for power generation from heat recovery in naval environments, where they can be factory-installed or retrofitted in place of one or more gensets. They are designed to run efficiently using low-temperature heat - the lowest of the whole Zuccato Energia range of ORC power generation modules - and make it possible to exploit heat recovered from sources that were until now considered unusable, such as the engine oil cooling circuit. Moreover, the low condensation temperatures made possible by the naval environment give them a very respectable efficiency rating for their power range.
Technical Specifications
| General Specifications | |||
| Model | ZE-200-ULN | ZE-250-ULN | ZE-300-ULN |
| Thermal power input | 2273 kWT | 2810 kWT | 3333 kWT |
| Electric power output | 200 kWE | 250 kWE | 300 kWE |
| System efficiency | 8,8 % | 8.9 % | 9.0 % |
| Vector fluid | Hot water | ||
| Vector fluid input temperature | ≥85 °C | ||
| Vector fluid output temperature | 80°C | ||
| Vector fluid nominal flowrate | 108.24 kg/s | 133.81 kg/s | 158.71 kg/s |
| Working fluid |
Environment-friendly HFC mix | ||
| Skid Dimensions(L x W x H) | 6.2m x 2.6m x 3.2m | ||
| Weight(inc,working fluid) | n/a | ||
| Condensation Stage Specifications | |||
| Tipo | Brazed plate, in AISI 316 s/s and 99.9% copper | ||
| Thermal power dissipation | 2039 kWT | 2518 kWT | 2982 kWT |
| Cooling water input temperature | 20 °C | ||
| Cooling water output temperature | 25 °C | ||
| Cooling water nominal flowrate | 97.42 Kg/s | 120.29 Kg/s | 142.48 Kg/s |
| Generator Specifications | |||
| Type | Synchronous, permanent magnets, water cooled | ||
| Power output | 200 kWE | 250 kWE | 300 kWE |
| Rotation speed | 15 000 rpm (12...18 Krpm) | ||
| Output voltage | 533 VAC | ||
| Required water cooling | 5 kWT | ||
| Cooling water temperature | < 40°C | ||
| Cooling water flowrate | 10 l/min | ||
| Additional cooling (optional) | Working fluid injection | ||
| Gastight up to | PN 6 bar | ||
| Power Converter Specifications | |||
| Type | IGBT, grid-synchronized, air cooled, equipped with braking chopper | ||
| Power output | 200 kWE | 250 kWE | 300 kWE |
| Output voltage |
400 V AC +5% tol. | ||
| Output frequency | 50 Hz +0.5% tol. | ||
| Environment temperature | <40 °C | ||
| Braking chopper | Built-in, resistor-type | ||
| Turbine Specifications | |||
| Type | Radial inflow single-stage turbine with fixed nozzles, directly coupled to generator | ||
| Working fluid input temperature | 81.5 °C | ||
| Working fluid output temperature | ∼60 °C | ||
| Stage pressure | PS 4,42 bar (tested up to 10 bar) | ||
| Turbine body material |
Machined, nickel-plated carbon steel | ||
| Impeller material | Aluminium alloy | ||
| Speed control | DC bus voltage feedback loop | ||
| Impeller seal | Sealed labyrinth seal on impeller back | ||
| Generator seal | Sealed axial labyrinth at generator interface (optional) | ||
| Environment seal | Static seals and O-rings | ||
| Working Fluid Specifications | |||
| Working temperature range | 60°C < T <165 °C | ||
| Condensation temperature | ≤ 33 °C | ||
| Operating pressure | ≤ 20 bar | ||
| Toxicity | Non-toxic | ||
| Biodegradability | 100% | ||
| Impact on ozone layer | None (ozone-friendly) | ||
Although everything possible has been done to ensure that the data shown here are up to date and correct, they must be considered indicative, non-binding and subject to change without notification.
In particular, regarding downloadable content, we advise you to contact our offices to make sure you receive the latest version.